Yeah it fits in t here just fine. Enough length to fit in properly, not too close to the motherboard height wise and length wise fits in properly too. Have the extra cords ziptied and tucked under my CD drive as best as I can.
http://puu.sh/cmhy7/dfc97550e0.png
http://puu.sh/cmhKg/9758c4f972.png
Unfortunately I do not know the dimensions of the regular power supply as I seem to have lost my tape measurer, nor do I have a ruler. xD But i'll post back and probably edit my OP with this information and the dimensions of the original power supply.